// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package host

// beforeSave is invoked by stateify.
func (d *descriptor) beforeSave() {
	if d.donated && d.origFD < 0 {
		panic("donated file descriptor cannot be saved")
	}
}

// afterLoad is invoked by stateify.
func (d *descriptor) afterLoad() {
	// value must be manually restored by the descriptor's parent using
	// initAfterLoad.
	d.value = -1
}
